QSFP-100G-SR4-S Cisco Compatible 100GBASE-SR4 QSFP28 Transceiver

Cisco
QSFP28
100G
8 Fibers
100 m
QSFP-100G-SR4-S Cisco Compatible 100G 100M MMF QSFP28 module

Cisco compatible QSFP-100G-SR4-S - Key Features

  • Compatibility: Cisco
  • Media Type: 4 Lanes of Multi-Mode Fiber (MMF)
  • Connector: MTP/MPO-12 (UPC)
  • Fiber Count: 8 Fibers
  • Maximum Distance: 100 m
  • Average Link Budget: 1.9 dB
  • Tx Wavelength: 850 nm
  • Supported Data Rate: 103.125 Gbps
  • DDM/DOM: Supported
  • Forward Error Correction (FEC): No
  • Temperature Range: Standard 0°-70°C

Cisco QSFP-100G-SR4-S Price

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Cisco compatible QSFP-100G-SR4-S Specifications

Form Factor
QSFP28
Modulation
NRZ (Non-Return to Zero)
Media Type
4 Lanes of Multi-Mode Fiber (MMF)
Connector
MTP/MPO-12 (UPC)
Fiber Count
8 Fibers
Maximum Distance
100 m
Average Link Budget
1.9 dB
TX Wavelength
850 nm
RX Wavelength
4-channel 850 nm
Supported Data Rate
103.125 Gbps
Supported Ethernet Applications
100G Ethernet (103.125 Gbps)
DDM/DOM
Supported
Forward Error Correction (FEC)
No
Transmitter Type
VSCEL Laser
Tx Wave Bandwidth
20 nm (840-860 nm)
Average Launch Power (Min) Each Lane
3 dBm
Average Launch Power (Max) Each Lane
7.5 dBm
Extinction Ratio (Min)
3 dB
Receiver Type
PIN photodiode
RX Wave Bandwidth
20 nm (840-860 nm)
Average Receiver Sensitivity (Min) Each Lane
-10.3 dBm
Average Receiver Sensitivity (Max) Each Lane
2.4 dBm
Receiver Overload
3.4 dBm
Temperature Range
Standard 0°-70°C
Storage Temperature
-40° to 85°C
Relative Humidity
5 to 85%
Power Consumption (Max)
3.5 W
Power
+3.3V single power supply
Compliance
CE, RoHS, Class 1 FDA and IEC60825-1 Laser Safety Compliant, IEEE 802.3bm, 100GBASE-SR4, QSFP28 MSA, SFF-8636 (Management Interface for 4-lane modules), SFF-8665

Cisco compatible QSFP-100G-SR4-S Datasheet

v3

Complete technical specifications and product details

Updated:Jan 16, 2026Format:PDF

Cisco compatible QSFP-100G-SR4-S Description

EdgeOptic's QSFP-100G-SR4-S compatible is a Cisco-coded 100GBASE-SR4 version of the EdgeOptic 100G-QSFP28-100 multi-vendor QSFP28 transceiver, one universal short-reach module coded for a range of switch and router vendors. It runs 100G Ethernet over four parallel 850 nm VCSEL lanes at 25G each across multimode fiber, terminated on an MTP/MPO-12 (UPC) connector using 8 active fibers, 4 transmit and 4 receive. The transceiver port is female (unpinned); the patch cable is the pinned male side. Reach is 70 m over OM3 and 100 m over OM4, per IEEE 802.3bm Clause 95.

Optical specifications match the OEM SR4 module: a 1.9 dB average link budget, receiver sensitivity of −10.3 dBm per lane, NRZ modulation, and no FEC required at this reach. The transmitter uses VCSEL lasers at 850 nm; the receiver is a PIN photodiode. The reach figures assume standard multimode attenuation, so OM4 supports the full 100 m while OM3 is rated to 70 m, with achievable distance depending on patch panels, splices, and connector cleanliness in the installed link. DDM/DOM is supported, so the host can read live optical power, temperature, bias, and voltage. The module operates across the 0°C to 70°C commercial temperature range at 3.5 W and is compliant with the QSFP28 MSA and SFF-8665. This is a 100G Ethernet short-reach optic; it does not carry Fibre Channel, OTN, or SONET traffic.

The QSFP-100G-SR4-S= part number is Cisco's standalone spare ordering PID for the same optical module. EdgeOptic codes this compatible with Cisco-recognized EEPROM, so the service unsupported-transceiver command is not required on switches that recognize the coding. It is compatible with Cisco Nexus 9000 and Catalyst 9500 switches that have 100G QSFP28 ports; confirm the specific switch model and line card against the Cisco transceiver compatibility matrix before deployment. Typical roles include data center core interconnects, ISP aggregation, and mobile operator core networks. Full optical specifications are on the datasheet below.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms. Ships next business day from EU stock with a lifetime warranty. For project pricing or technical consultation, contact our sales team.

Frequently Asked Questions

Does the QSFP-100G-SR4-S compatible work in Cisco Nexus 9000 and Catalyst 9500 without a CLI workaround?

Yes. EdgeOptic codes this compatible with Cisco-recognized EEPROM, so the service unsupported-transceiver command is not required on switches that recognize the coding. It is compatible with Cisco Nexus 9000 and Catalyst 9500 switches that have 100G QSFP28 ports; verify the specific switch model and line card against the Cisco transceiver compatibility matrix before deployment.

What is the difference between QSFP-100G-SR4-S and QSFP-100G-SR4-S=?

They are the same optical module. The trailing = is Cisco's convention for the standalone spare ordering PID, used when ordering the transceiver on its own rather than bundled with a chassis or line card. The EdgeOptic compatible covers both ordering scenarios.